Lock



March 2, 1954 w. e. B'ANHAM LOCK Filed Feb. 29, 1952 Inventor WI LLIAM.GEORGE BANKAM Attorney Patented Mar. 2, 1954 LOCK William George Banham,Edmonton, Alberta, Canada Application February 29, 1952, Serial No.274,204

3 Claims.

My present invention relates to improvements in a lock and especially toone in which the latch has two locking positions for selectivelyengaging either of two relatively movable spaced elements.

An object of the invention is to provide a twoway lock designed toselectively hold either one element against lateral movement or anotherelement against vertical movement relative to the lock carrier.

A further object of the invention is to provide a mortise lockselectively engageable with either of two spaced elements to hold theone and free the other, such spaced elements when free being movable inplanes at right angles to each other.

A further object of the invention is to provide a mortise lockinsertable fiush in the edge of a carrier element and. having a latchmovable into either of two sockets alignable respectively on oppositesides thereof to prevent either the transverse movement of One of saidsocket or any but limited vertical movement in one direction of theother socket.

A further object of the invention is to provide a lock having a latchengageable with either of two sockets, such latch being self-lockingagainst displacement in one of said sockets on the relative movement ofthe latch and socket in one direction and being ejected from the socketon the relative movement of the parts in the reverse direction, on whichejection the latch may be caused to seat in the other socket.

A still further object of the invention is the provision of a novel,eflicient and highly useful lock of the nature specified that ischaracterized by structural simplicity, its ease of installation,dependable operation and low cost of production whereby the same isrendered commercially desirable.

To the accomplishment of these and related objects as shall becomeapparent as the description proceeds, the invention resides in theconstruction, combination and arrangement of parts as shall behereinafter more fully described, illustrated in the accompanyingdrawings, and pointed out in the claims hereunto appended.

The invention will be best understood and can be more clearly describedwhen reference is had to the drawings forming a part of this disclosurewherein like characters indicate like parts throughout the severalviews.

In the drawings:

Figure 1 is a perspective view of the lock with the two spacedselectivcly-engageable sockets both aligned therewith;

Figure 2 is an elevation thereof with the latch 2 engaged in therelatively vertically movable socket;

Figure 3 is a correspondin side elevational view, with parts shows insection; and

Figure 4 is an elevation of a portion of a hinging double hung slidingwindow, showing a possible installation of this look.

While useable in any assembly where parts are to have relative slidingand swinging movements, I have shown this instant lock applied to ahinging double hung sliding window in Figure 4, only for the purpose ofillustration and the orienting of the three principal and individuallyseparable parts thereof. In this window structure the sash A has adouble stile or side rail B at each side slidable in the usual guidechannels C of the frame D. The sash part of the stile is connected tothe outer stile post by a pivot E near the bottom to allow the sash tobe hinged inwards but is held in normal position by the lock F set inthe top of the stile.

When it is desired to swing the window in, the stile lock is releasedfrom the sash A and moved to engage a socket G in the frame D to preventthe upward slidin of the stile post, thereby caus ing the sash to besupported horizontally on the sill, as for cleaning. Thus it will b seenthat the latch part of the lock is mounted in the top of the stile postand is selectably caused to engage spaced and alignable sockets ineither the laterally swinging sash A or the relatively verticallymovable frame D to free the one and hold the other. In the instant lockthe latch consists of a relatively thin flat plate I of irregular shaperounded at the end 2 and having its underside 3 provided with a step 4thence tapering to meet the straight or flat top 5 at a point 6, the top5 joining the rounded end 2 by an angularly disposed end I. The latch lis mounted in an open ended U-shaped pocket 8, the vertically disposedarms 9 of which have an exterior flange It! at the top, and transverselythrough which pocket a terminally threaded pivot pin l l extends, beingaccommodated by a bore l2 in the latch I concentric with the rounded end2.

A pair of sockets each individually alignable with and movable relativeto the latch I lie one on each side of the pocket 8. These sockets areadapted to be mounted on carrier elements m'ovable in planes at rightangles to one another, e. g., the one to move laterally across theend'of the latch pocket and the other to slide vertically horizontallevel as the pocket 3, the first socket is a channel-like member 14alignable longitudinally with the pocket 8 as seen in Figures 1, 2 and3, being of substantially the same width as the pocket and havingsimilar exterior top flanges l5, however the bottom l6 of the channel isinclined to serve as a rest for the latch i when nested therein and tosupport the latchs top edge 5 horizontal and preferably flush with thetop flanged edges l5 and H] of the channel and pocket respectively. Insuch nested position it is desirable that the latch be so proportionedthat its.

pointed free end 6 project slightly beyond the channel socket I l toafford a thumb grip whereby said latch may be raised clear of saidchannel socket.

The second socket in vertically slidable relation to the latch is avertically elongated mortisetllpe housing l'i, the latch-confrontingface l8 thereof suitably perforated as at IQ for attaching screws,having a long thin slot 23 therein. At its upper end this; slot 29endsshort of the top of the housing if by a distance greater than thelength of the latch from the shoulder to it pointed end '6 so that thelatch I when swung into said socket housing I? through the admittingslot is held against dislodgement bythe endfi being trapped therein bythe front plate overhanging lip 2+ at the top of the slot that rests onthe latch shoulder t that serves as a stop barring further verticalmovement between thelatch and socket-housing in one direction. On thereverse relative movement of these. parts, however, the face plate 1-3at the lower end or"- the slot 20- engag-es the inclined end I of thelatch l and rotates it in an ejecting movement to throw it back into thechannel socket It.

Applied to the window structure shown in Fig-- ure 4 and hereinbeioredescribed, the latch pocket 8' is recessed in the top of the outerpartof the stile B, the channel socket h1- similarl y recessed in thetop of the inner rail part of the sash A at" the edge thereof and themortise housing H set into the bottom of the guide channel C' of theframe D at the normal level of the top of the sash. Thus, for the usualsliding of the sash innormal use, the latch l lies horizontally extendedirrthe channel It securing the-sash against-hing ing inwards on thestile connecting pivots E but:

when it is desired to swing the sash A inwards as for washing theoutside of the window, the latch l is raised clear of the channel id andro--- tate'd into the mortise housing (7 allowing only a very limitedvertical lift to the outer stile post until the shoulder stop t of thelatch strikes the.

lip 21 at the top of the slot 28, thereby supporting the inwardly hingedsash in horizontal position as; it rests on the window sill. To resetthe window, the sash ishinged upwards into its normal planar positionwith the channel hi aligned with the latchpockets in the top of the:outer stile post, then the whole sash pressed down slightly so that thetrapped tip of latch is first cleared of the lip 2!, thenthe taperedbottom F thereof engages the bottom of the slot ZlT-and the latch l isthrown clear of the socket housing- I I and into" the channel It, againlockin the sash and outer stile part against lateral separation.

Thus it will be seen that a new and highly useful two-way lock isprovided wherein a rotatable flat plate latch is individuallyengageable-witlieither of two spaced members movable in directions atright angles to one another to lock them against relative lateral andvertical movements respectively, and while it has been shown anddescribed as applicable to a specific window structure, it will bemanifest that such a lock is capable of widely varying uses. and manydifferent embodiments within the scope of the appended claims withoutdeparting from the spirit or scope thereof, and it will consequently beapparent that all matters contained in the foregoing shall beinterpreted as illustrative and not ina limitative or restrictive sense.

What I claim as new and desire to secure by Letters Patent is:

l. A lock comprising a U-shaped pocket open at the, top and both ends, alatch swingingly mounted in said pocket, on a transverse pivot, achannel member open at the top and ends and movable-laterally withrespect to said latch and alignable therewith to receive the same and avertically elongated socket member onthe oppesite' side of said latchfrom said channel memher and slidable in relation to said latch in whichsaid latch may engage when freed from said channel; said latch being arelatively thin flat plate having a short angularly extending" endrunning upwards from near said pivot, a straightflat normally horizontaltop and a sloping under side having a step'therein and therebeyondtaperingto meet said fiat top a-ta point, whereby when said pocket andsaidchannel member are aligned and said latch is seated in the latter,the straight fiat top of said latch lies flush with. the tops of saidpocketand channel member.

2 A look. as set forth in claim I wherein the length of the latch platefrom said pivot to its pointed end, relative to the length of saidpocket: and said channel. member, is such that the pointed. free end ofsaid latch plate projects beyond the remote end of the: channel member,providing a. thumb lift to disengage said latch from said: chair--nelmember.

It. A look as set forth in claim 1 wherein said socket member isamortise-type housing with a slot inthe latch-confronting face thereofthrough which saidlatch plate may enter, the sliding-of said socketmember in one direction bringing the-top of the slot against thestepplate; said latch platewhen standing vertically insaid socket memberresting: with its flat top against the inside of said housing and whenejectedtherefrom falling intosaid' channel mem--' her to liehorizontally with its fiat top flush with:

i the top of said channel member.

WILLIAM! GEORGE BANH'AMW References Citedthe file of this, patent UNITEDSTATES PATENTS- Number; Name Date 1,747,576. Caldwell Feb. 18', I930 2',11c9;142' Hall W Feb; 6, 1-940 2 204,969 Pascuzzi et a1 June 18', I940FOREIGN. PATENTS Number Country Date 15,515 Great Britain June 28, I910

